Anti-dizzy seat of passenger car

Abstract

The invention relates to an anti-dizzy seat of a passenger car, and belongs to the technical fields of traffic transportation engineering, vehicle engineering and the like. A monitoring assembly is installed around the main driving position and used for monitoring actions of a driver on a brake pedal and an accelerator pedal. A friction unit is arranged on the side face of a sliding rail of the anti-dizzy seat, and an actuator of the anti-dizzy seat can enable the friction unit to be separated from the sliding rail. When the vehicle speed is lower than a set low-speed limit value, the seat is fixed on the sliding rail; when the vehicle speed exceeds a set high-speed limit value, the actuator enters a working state, the seat can slide along the sliding rail, and the seat is in an anti-dizzy state; if the vehicle speed is between the two, the monitoring assembly enters a working state, and when the controller judges that the driver needs to step on the brake, the actuator enables the friction resistance unit to be separated from the sliding rail; when the monitoring assembly monitors that the driver accelerates or releases the brake pedal, the actuator enters a non-working state, and the seat is fixed to the sliding rail. In the anti-dizziness state, relative movement of the head and other parts of the body of a passenger can be reduced, and therefore the anti-dizziness purpose is achieved.

Description

Technical Field

[0001] The present invention relates to an automobile seat, and particularly to an anti-motion sickness seat for passenger cars, belonging to the technical fields of transportation engineering, vehicle engineering, etc. Background Art

[0002] Motion sickness is a discomfort caused by movement, mainly manifested as dizziness, nausea, and vomiting. Motion sickness is a common phenomenon globally with a wide range of impacts. Research shows that approximately 30% of the population experiences motion sickness in daily life. Under extreme motion conditions, especially during rapid changes in vehicle speed, almost everyone may experience motion sickness symptoms. The main cause of motion sickness is the inconsistency of information between the balance sensors in the inner ear and the visual system and proprioceptive system during body movement, resulting in a conflicting perception of the motion state by the brain. When taking a means of transportation, the vestibular system senses the movement of the vehicle, such as acceleration and deceleration. However, the eyes see a stationary interior environment of the vehicle, which is inconsistent with the motion state sensed by the vestibular system, thus causing motion sickness. Especially when braking suddenly, the stimulation received by the vestibular organ increases, and the motion sickness symptoms become more obvious.

[0003] Motion sickness not only has a direct impact on an individual's health and comfort but also may have a more extensive impact on industries such as social and economic activities, transportation, and tourism. The impacts on an individual include: (1) The main symptoms of motion sickness include dizziness, nausea, vomiting, sweating, and pale complexion, which can make people feel extremely uncomfortable. Prolonged motion sickness may lead to dehydration, fatigue, and even more serious health problems. (2) Motion sickness may cause anxiety or fear about traveling or taking a vehicle, thereby reducing the frequency of travel. (3) Motion sickness may limit an individual's range of activities. Especially in areas with inconvenient transportation, motion sickness sufferers may have difficulty enjoying long-distance travel or outdoor sports. The impacts on society and the economy: (1) Motion sickness will seriously affect people's travel experience, especially during long-distance travel or frequent commuting, and may lead to a reduction in the frequency of travel. (2) The fatigue and discomfort caused by motion sickness may affect work and learning efficiency, and thus affect social productivity. (3) Motion sickness may affect the user experience of the tourism industry and thus affect the economic benefits of related industries. For example, motion sickness may cause people to reduce travel plans or choose short-distance travel, thus affecting the economic development of the tourism industry. Summary of the Invention

[0004] In order to prevent passengers from suffering from motion sickness and relieve the motion sickness symptoms of passengers, the present invention designs an anti-motion sickness seat for passenger cars, aiming to reduce the forward inclination degree of passengers caused by inertia during braking, thereby slowing down the motion sickness reaction of passengers.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows: An anti-motion sickness seat for a passenger car, comprising a seat, a slide rail, a friction unit, a monitoring component and a controller; the slide rail is located under the seat to support the seat and allow the seat to move along it; the friction unit is fixed under the seat and located laterally to the slide rail, and includes a resistance plate, a spring and an actuator; when the actuator is in a non-operating state, under the action of the spring, the resistance plate contacts the slide rail to fix the seat; when the actuator is in an operating state, it drives the resistance plate away from the slide rail, and the seat can move along the slide rail; the monitoring component is mainly used to monitor the operating states of the driver on the accelerator pedal and the brake pedal; the controller is connected to the monitoring component and the actuator, can control the operating state of the monitoring component, and receive signals from the monitoring component to determine whether to change the electrical connection state of the actuator: when the vehicle speed is lower than the set low-speed limit value, the actuator is in a non-operating state and the seat is fixed on the slide rail; when the vehicle speed exceeds the set high-speed limit value, the actuator enters the operating state and the seat can slide along the slide rail; if the vehicle speed is between the low-speed limit value and the high-speed limit value, the monitoring component enters the operating state. When the controller determines that the driver steps on the brake, the actuator enters the operating state to make the resistance plate disengage from the slide rail; when the monitoring component monitors that the driver releases the brake pedal or the foot leaves the brake pedal, the actuator enters the non-operating state to fix the seat on the slide rail.

[0006] Preferably, a pull ring is provided at the bottom of the seat, and the pull ring is connected to the friction unit by a rope or a chain. The passenger pulls the pull ring to make the resistance plate disengage from the slide rail, thereby adjusting the position of the seat; a guide ring is fixed at the bottom of the seat, and the guide ring is located near one end of the corresponding friction unit away from the corresponding slide rail and in the direction close to the pull ring.

[0007] Preferably, the friction unit is connected to a guide plate fixed to the bottom of the seat and is suspended under the seat; a cross beam is fixed to the guide plate, and a slider is provided at the end of the cross beam, and the slider can slide along the corresponding slide rail.

[0008] Preferably, the friction unit further includes a baffle and a connecting rod; the connecting rod passes through the spring, one end is connected to the resistance plate, and the other end is connected to the baffle; the spring and the resistance plate are located on one side of the guide plate, and the baffle and the actuator are located on the other side of the guide plate.

[0009] Preferably, the seat is supported by the guide plate and the slide rail.

[0010] Preferably, the slide rail includes a left slide rail and a right slide rail; correspondingly, the friction unit includes a left friction unit and a right friction unit.

[0011] Preferably, the controller consists of a PLC board, sensor wires, camera wires, and actuator wires; when the PLC board receives signals output from the sensor wires and camera wires, it will determine whether to change the electrical connection state of the actuator.

[0012] Preferably, there are guide bars on the side of the resistance plate close to the corresponding slide rail, and there are chutes on the side of the slide rail, and the guide bars slide along the chutes.

[0013] Preferably, the monitoring component includes a sensor and a camera; the camera is used to monitor the operating states of the accelerator pedal and the brake pedal, the sensor is connected to the back of the brake pedal to sense the movement state of the brake pedal; the sensor is a displacement sensor or a speed sensor.

[0014] Preferably, the actuator is an electric actuator, or the actuator is made of piezoelectric material and can elongate after being energized.

[0015] The beneficial effects of the present invention include the following aspects:

[0016] (1) The technical solution of the present invention adopts a pull-ring design at the bottom of the seat, which can change the seat position at any time according to the needs of the passengers themselves, and the operation is simple;

[0017] (2) The technical solution of the present invention uses a camera and a sensor, which can effectively monitor the braking behavior of the driver, and by using a programmable logic controller (referred to as "PLC" for short), it can effectively control the switch connected to the actuator, with sensitive response and low cost;

[0018] (3) The friction unit in the technical solution of the present invention is ingeniously designed. When in the anti-motion sickness state, the actuator plays a role, pushing the baffle, driving the connecting rod and the resistance plate to move, and compressing the spring, so that the resistance plate is disengaged from the slide rail. The components adopted by the present invention are common and the implementation cost is low;

[0019] (4) There are bumps on the slide rail in the technical solution of the present invention. When in the non-anti-motion sickness state, the resistance plate in the friction unit closely abuts against the inner side of the slide rail, and there are bumps on the side of the slide rail on one side of the resistance plate, which can prevent the seat from sliding further, with reliable structure and low cost;

[0020] (5) The technical solution of the present invention can make the seat move with inertia when the vehicle brakes, so as to reduce the relative movement between the head and other parts of the passenger caused by inertia, thereby alleviating the motion sickness symptoms of the passenger. The principle is simple and the applicability is strong;

[0021] (6) The technical solution of the present invention already has intelligence and can realize the automation and intelligence of anti-motion sickness;

[0022] (7) The present invention can be used for the transformation of old vehicles and also for the production of new vehicles. The required materials can be selected from relevant standard parts, with low cost and limited additional investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Three-dimensional schematic diagram below the front of the driver's seat;

[0024] Figure 2 Three-dimensional schematic diagram of the passenger seat;

[0025] Figure 3 Three-dimensional schematic diagram of the sliding system of the passenger seat;

[0026] Figure 4 Top view schematic diagram of the sliding part when the passenger seat is fixed;

[0027] Figure 5 Top view schematic diagram of the sliding system of the passenger seat;

[0028] Figure 6 Schematic diagram of the programmable logic controller;

[0029] Figure 7 Cross-sectional schematic diagram of the slider on the right side.

[0030] Reference numerals in the drawings: accelerator pedal 1, brake pedal 2, sensor 3, sensor connection wire 4, camera 5, passenger seat 6, left slide rail 7, right slide rail 8, chute 9, pull ring 10, spring 11, guide plate 12, actuator 13, resistance plate 14, baffle 15, slider 16, cross beam 17, actuator connection wire 18, convex block 19, camera connection wire 20, PLC board 21, connecting rod 22. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] In order to enable professionals in the field to more deeply understand the technical concept of the present invention, the following will elaborate on the specific embodiments of the present invention with the aid of the drawings.

[0032] The orientation terms in the embodiments are in accordance with the customary terms in engineering and are not definitions in the strict sense. For example, "upper" means the upper surface of the built part of the structure and also includes the upper surfaces of the attached components in the obliquely upper position within its influence range; when indicating the orientation, "upper" includes directly above and also obliquely above. The orientation terms such as "left" and "right", "upper" and "lower", "front" and "rear" are only for coordinating with the drawings to facilitate the description. The orientation terms used are only for facilitating the description of this patent and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this patent.

[0033] The following is only a preferred embodiment of the present invention and does not limit the scope of the present invention.

[0034] Embodiment 1

[0035] The vehicle in this embodiment is a conventional five-seat family car, and the anti-motion sickness seat in the present invention is designed with the seat in the co-pilot position as the main body. The anti-motion sickness seat includes a co-pilot seat 6, a slide rail, a friction resistance unit, a monitoring component, and a controller. The slide rail is located under the co-pilot seat 6, supports the co-pilot seat 6, and allows the co-pilot seat 6 to move back and forth along it, as shown in Figure 2 . The slide rail includes a left slide rail 7 and a right slide rail 8. The friction resistance unit is fixed under the co-pilot seat 6 and can also be subdivided into a left friction resistance unit and a right friction resistance unit. Each friction resistance unit is located on the side of the corresponding slide rail and includes a resistance plate 14, a spring 11, a connecting rod 22, an actuator 13, a baffle 15, and a guide plate 12. One function of the guide plate 12 is to fix the entire friction resistance unit to the co-pilot seat 6; the connecting rod 22 passes through the spring 11 along the axial direction, with one end fixed to the resistance plate 14 and the other end connected to the baffle 15. Due to the shielding of the spring 11, the connecting rod 22 is not shown in Figure 3 , and reference can be made to Figure 7 ; the spring 11 and the resistance plate 14 are located on one side of the guide plate 12 of the corresponding friction resistance unit, and the baffle 15 and the actuator 13 are located on the other side of the guide plate 12 of the corresponding friction resistance unit, as shown in Figure 3 . A cross beam 17 is fixedly connected to the two guide plates 12, and there are sliders 16 at both ends. The sliders 16 can slide along the corresponding slide rails. The slide rails are hollow rectangular steel pipes with open tops. The lower main body of the slider 16 is located in the cavity of the slide rail, but there are 5 mm wide areas on both sides of the top surface of the slide rail above the cavity for restricting the slider 16 so that it can only slide back and forth; the transverse dimension of the lower main body of the slider 16 is 1 mm smaller than the transverse dimension of the inner cavity of the slide rail, the vertical dimension is 1 mm smaller than the vertical dimension of the inner cavity of the slide rail, and the longitudinal dimension is larger than its transverse and vertical dimensions, so that the slider 16 also has the ability to restrict the rotation of the co-pilot seat 6. The inner cavity of the slide rail and the surface of the slider 16 in contact with the slide rail are both smooth, and the friction coefficient between them is small. There is a chute 9 on the inner side of the slider 16 close to the friction resistance unit, and a transverse guide bar is welded to the side of the resistance plate 14 close to the corresponding slide rail, and this guide bar slides along the chute 9, as shown in Figure 7 , Figure 7The rectangular area filled with black corresponds to the guide bar. The actuator 13 is an electric actuator or a piezoelectric actuator made of piezoelectric material, which can extend after being powered on and retract to its original length after being powered off. When the actuator 13 is in the non-operating state of being powered off, under the action of the spring 11, the resistance plate 14 contacts the slide rail to fix the co-pilot seat 6 so that it cannot slide back and forth; when the actuator 13 is powered on and extended to be in the operating state, the resistance plate 14 is driven by the connecting rod 22 to disengage from the slide rail, and the co-pilot seat 6 can move along the slide rail. The co-pilot seat 6 is directly supported by two guide plates 12, and it can also be considered to be supported by the left slide rail 7 and the right slide rail 8 at the front end. The upper end of the front support is fixedly connected to the co-pilot seat 6, and the lower end slides along the corresponding slide rail, and the length of the support member is adjustable to finely adjust the elevation angle of the co-pilot seat 6.

[0036] The monitoring component is arranged around the driver's seat and is mainly used to monitor the operating states of the driver on the accelerator pedal 1 and the brake pedal 2, including the sensor 3 and the camera 5, as shown in Figure 1 . The sensor 3 is connected to the back of the brake pedal 2 to sense the motion state of the brake pedal 2. The sensor 3 can be a displacement sensor or a speed sensor.

[0037] The controller consists of a PLC board 21, a sensor connection wire 4, a camera connection wire 20, and an actuator connection wire 18, as shown in Figure 6 . The sensor connection wire 4 connects the PLC board 21 and the sensor 3, the camera connection wire 20 connects the PLC board 21 and the camera 5, and the actuator connection wire 18 connects the PLC board 21 and the actuator 13. When the PLC board 21 receives the signals output from the sensor connection wire 4 and the camera connection wire 20, it will judge the operating states of the driver on the accelerator pedal 1 and the brake pedal 2, and thus judge and execute the electrical connection state of the actuator 13. Refer to Figure 4 and Figure 5 . When the vehicle speed is lower than the set low-speed limit value, the actuator 13 is in the non-operating state, and the co-pilot seat 6 is fixed on the slide rail; when the vehicle speed exceeds the set high-speed limit value, the actuator 13 enters the operating state, and the co-pilot seat 6 can slide along the slide rail; if the vehicle speed is between the low-speed limit value and the high-speed limit value, the monitoring component enters the operating state. When the controller judges that the driver steps on the brake, the actuator 13 enters the operating state to make the resistance plate 14 disengage from the slide rail; when the monitoring component monitors that the driver relaxes the brake pedal 2 or the foot leaves the brake pedal 2, the actuator 13 enters the non-operating state, and the co-pilot seat 6 is fixed on the slide rail.

[0038] There is a pull ring 10 at the bottom of the co-pilot seat 6, and the pull ring 10 is connected to the baffle 15 of the friction unit by a rope or a chain. A guide ring is fixed at the bottom of the co-pilot seat 6, and the guide ring is located near one end of the corresponding friction unit away from the corresponding slide rail and in the direction close to the pull ring 10. When a passenger pulls the pull ring 10, the resistance plate 14 can be disengaged from the slide rail, facilitating the adjustment of the position of the co-pilot seat 6. Especially when getting off after the ride or preparing to get on the vehicle to start the ride, the co-pilot seat 6 can be moved backward. There is a bump 19 on the slide rail, which can block the resistance plate 14 so that the resistance plate 14 is located behind the bump 19, thus blocking the co-pilot seat 6 and preventing it from moving back and forth. When the co-pilot seat 6 slides to the front end of the slide rail or the passenger wants to change the position of the co-pilot seat 6, the pull ring 10 can also be pulled, and the rope on the pull ring 10 disengages the resistance plate 14 from the slide rail. At the same time, although not shown in the figure, there is also a structure at the rear end of the slide rail to block the resistance plate 14, preventing the co-pilot seat 6 from sliding out of the slide rail from the rear when the vehicle accelerates.

Claims

1. An anti-sickness seat for a passenger vehicle, characterized in that: It includes a seat, a slide rail, a friction unit, a monitoring component and a controller; the slide rail is located under the seat, supports the seat, and allows the seat to move along it; the friction unit is fixed under the seat, located on the side of the slide rail, and includes a resistance plate, a spring, and an actuator; when the actuator is in a non-working state, under the action of the spring, the resistance plate contacts the slide rail to fix the seat; when the actuator is in a working state, it drives the resistance plate to separate from the slide rail, and the seat can move along the slide rail; the monitoring component is mainly used to monitor the driver's control status of the accelerator pedal and the brake pedal; the controller is connected to the monitoring component and the actuator, and can control the operation of the monitoring component state, and receives the signal from the monitoring component to determine whether to change the electrical connection state of the actuator: when the vehicle speed is lower than the set low-speed limit, the actuator is in a non-working state, and the seat is fixed on the slide rail; when the vehicle speed exceeds the set high-speed limit, the actuator enters a working state, and the seat can slide along the slide rail; if the vehicle speed is between the low-speed limit and the high-speed limit, the monitoring component enters a working state, and when the controller determines that the driver has stepped on the brake, the actuator enters a working state to disengage the resistance plate from the slide rail; when the monitoring component detects that the driver has released the brake pedal or has taken his foot off the brake pedal, the actuator enters a non-working state and fixes the seat on the slide rail.

2. The anti-sickness seat for passenger vehicles according to claim 1, characterized in that: A pull ring is provided at the bottom of the seat, which is connected to the friction unit through a rope or a chain. The passenger pulls the pull ring to disengage the resistance plate from the slide rail, thereby adjusting the position of the seat; a guide ring is fixed to the bottom of the seat, and the guide ring is located near the end of the corresponding friction unit away from the corresponding slide rail and close to the direction of the pull ring.

3. The anti-sickness seat for a passenger vehicle according to claim 1, characterized in that: The friction unit is connected with a guide plate fixed on the bottom of the seat and is suspended under the seat; a crossbeam is fixed on the guide plate, and a sliding block is provided at the end of the crossbeam, and the sliding block can slide along a corresponding sliding rail.

4. The anti-sickness seat for a passenger vehicle according to claim 3, characterized in that: The friction unit also includes a baffle and a connecting rod; the connecting rod passes through the spring, one end of which is connected to the resistance plate, and the other end is connected to the baffle; the spring and the resistance plate are located on one side of the guide plate, and the baffle and the actuator are located on the other side of the guide plate.

5. The anti-sickness seat for passenger vehicles according to claim 3, characterized in that: The seat is supported by the guide plate and the slide rail.

6. The anti-sickness seat for a passenger vehicle according to claim 1, characterized in that: The slide rail includes a left slide rail and a right slide rail; correspondingly, the friction unit includes a left friction unit and a right friction unit.

7. The anti-sickness seat for a passenger vehicle according to claim 1, characterized in that: The controller comprises a PLC board, a sensor connection, a camera connection, and an actuator connection; when the PLC board receives a signal output from the sensor connection and the camera connection, it determines whether to change the electrical connection state of the actuator.

8. The anti-sickness seat for a passenger vehicle according to claim 1, characterized in that: The resistance plate is provided with a guide bar on the side close to the corresponding slide rail, and the side of the slide rail is provided with a slide groove, and the guide bar slides along the slide groove.

9. The anti-sickness seat for a passenger vehicle according to claim 1, characterized in that: The monitoring component includes a sensor and a camera; the camera is used to monitor the control status of the accelerator pedal and the brake pedal, and the sensor is connected to the back of the brake pedal to sense the movement status of the brake pedal; the sensor is a displacement sensor or a speed sensor.

10. The anti-sickness seat for a passenger vehicle according to claim 1, characterized in that: The actuator is an electric actuator, or the actuator is made of piezoelectric material and can be extended after being energized.

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